Eric Weiss is a field agent at the CIA. He is a friend of most of the people at the CIA and often gives advice to the other characters, as an outside observer to all of the personal goings-on at the CIA. Weiss has a wry and sarcastic sense of humor which often comes out in his observations.He initially served as a humorous foil and sounding board for Michael Vaughn, but with the integration of the former members of SD-6 and the CIA, he gives advice to many of the other characters, including Sydney and Marshall Flinkman.When Marshall's fianc